Solved

mailbox database.edb and a sum of totalitemsize output difference

Posted on 2011-09-06
7
1,146 Views
Last Modified: 2013-11-05
My Exchange 2007 server  has mailbox database.edb   file, that is  137 GB in size
If I pull  the report by running a command " Get-MailboxStatistics -Database “Mailbox Database” | Select DisplayName,  TotalItemSize | Export-CSV.." , then summarize TotalItemSize for all mailboxes, I am getting   160 GB number.  Several days ago it was 172 GB, but after the users ran some cleanup the size reduced to 160 GB. The size ofa  mailbox database.edb file  still is growing though.

Could anybody help me to figure out why there is a difference between the  size of mailbox database.edb file and a sum of all TotalItemSize items.

Thank you
0
Comment
Question by:irinadruker
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
  • 2
7 Comments
 
LVL 23

Assisted Solution

by:Suliman Abu Kharroub
Suliman Abu Kharroub earned 250 total points
ID: 36493959
0
 

Author Comment

by:irinadruker
ID: 36500702
I would understand  if I have .edb file larger then total up all the mailboxes plus white space, but the situation is opposite, .edb file is 137 GB, total up all the mailbox is 160 GB plus white space   is about  1 GB.
0
 
LVL 23

Expert Comment

by:Suliman Abu Kharroub
ID: 36500992
it is strange.are you sure all of these mailboxes hosted in one database ?
0
Instantly Create Instructional Tutorials

Contextual Guidance at the moment of need helps your employees adopt to new software or processes instantly. Boost knowledge retention and employee engagement step-by-step with one easy solution.

 

Author Comment

by:irinadruker
ID: 36506109
we have just one  database,  but we have a standby server  on the recovery site, with information store distmounted , replicated by a software  called ca xosoft, and I just wonder, if that might be something to do with this strange  issue
0
 
LVL 49

Accepted Solution

by:
Akhater earned 250 total points
ID: 36506152
You can never compare edb size to toal size of mailboxes there is a lot of factors

Whitespace is one, the other is sis (single instance storage) where one attachement sent to multiple users will show in the size of each mbx but only one in tne db
0
 

Author Comment

by:irinadruker
ID: 36506203
is  it possible to confirm that is the case, I thought about it,  as our users are  sending multiple attachments to a number of people, but not sure how can I get the numbers
0
 
LVL 49

Expert Comment

by:Akhater
ID: 36506235
What do you mean confirm? Again there is no direct relation between the edb and the mailbox sizes.

Typically the edb will be bigger because of retention items, white space, table structures etc...

However in a case where same mail is sent to multiple users then sis will result in an edb smaller than the total of the mailboxes
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question